US9297473B2 - Solenoid valve with armature guide - Google Patents

Solenoid valve with armature guide Download PDF

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Publication number
US9297473B2
US9297473B2 US14/347,325 US201214347325A US9297473B2 US 9297473 B2 US9297473 B2 US 9297473B2 US 201214347325 A US201214347325 A US 201214347325A US 9297473 B2 US9297473 B2 US 9297473B2
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Prior art keywords
armature
valve
coil
pressure path
valve seat
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US14/347,325
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US20140225018A1 (en
Inventor
Nobuyuki Tsuru
Hiroshi Akase
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Nabtesco Corp
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Nabtesco Corp
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Assigned to NABTESCO CORPORATION reassignment NABTESCO CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AKASE, HIROSHI, TSURU, Nobuyuki
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • F16K31/0658—Armature and valve member being one single element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
    • F02M63/0019—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of electromagnets or fixed armatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
    • F02M63/0021—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0071—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059 characterised by guiding or centering means in valves including the absence of any guiding means, e.g. "flying arrangements"
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/08—Fuel-injection apparatus having special means for influencing magnetic flux, e.g. for shielding or guiding magnetic flux
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/081—Magnetic constructions
    • H01F2007/086—Structural details of the armature

Definitions

  • This invention relates to an electromagnetic valve, for example to an solenoid valve for use in fuel injection valves.
  • Patent Literature 1 An example of electromagnetic valve used in a fuel injection valve of a common rail system is disclosed in Patent Literature 1.
  • the fuel injection valve disclosed in Patent Literature 1 is composed of components including a nozzle body 2 , a needle 3 , a holder body 4 , an orifice plate 6 , and an electromagnetic unit 8 , as shown in FIG. 4 .
  • the nozzle body 2 is coupled by a retaining nut 10 to the lower end portion of the body holder 4 with the orifice plate 6 disposed therebetween.
  • a guide hole 12 is formed in the nozzle body 2 to extend therethrough from the top end surface to the tip end of the nozzle body 2 .
  • the needle 3 is disposed in the guide hole 12 in such a manner that it can freely slide in the guide hole 12 .
  • An injection port 14 is formed in the tip end of the guide hole 12 through which fuel is injected when the needle 3 moves upward.
  • a high-pressure path 16 is formed by a gap between the inner circumferential surface of the guide hole 12 and the outer circumferential surface of the needle 3 .
  • the high-pressure path 16 guides highly pressurized fuel to the injection port 14 .
  • a fuel reservoir 18 is formed by enlarging the inner diameter of the guide hole 12 .
  • the upper end of the high-pressure path 16 opens in the top end surface of the nozzle body 2 and is connected to a high-pressure path 20 in the orifice plate 6 .
  • the high-pressure path 20 is connected via a high-pressure path 22 in the holder body 4 to a pipe joint 24 disposed at the upper end of the holder body 4 , and the pipe joint 24 is supplied with high-pressure fuel from a common rail.
  • a cylindrical spring seat 26 is press-fitted into and secured to the guide hole 12 , and a spring 28 is disposed between the spring seat 26 and the needle 3 .
  • the spring 28 urges the needle 3 in the direction to close the valve, or in the downward direction in FIG. 4 .
  • the inner circumferential surface of the spring seat 26 provides a back-pressure chamber 30 for providing a pressure of high-pressure fuel to the upper end surface of the needle 3 as a back pressure. This back pressure also urges the needle 3 in the valve-closing direction.
  • the pressure of the high-pressure fuel in the fuel reservoir 18 urges the needle 3 in the direction to open the valve, or in the upward direction in FIG. 4 .
  • an inlet path 32 and an outlet path 34 are formed in the orifice plate 6 .
  • the inlet path 32 is a path through which high-pressure fuel flows from the high-pressure path 20 into the back-pressure chamber 30
  • an outlet path 34 is a path through which the high-pressure fuel flows from the back-pressure chamber 30 to a low pressure side.
  • the electromagnetic unit 8 is housed in the holder body 4 .
  • the electromagnetic unit 8 includes a stator 38 having an electromagnetic coil 36 wound around a plastic bobbin.
  • the electromagnetic unit 8 includes also an armature 40 facing and movable relative to the stator 38 .
  • the electromagnetic unit 8 further includes a ball valve 42 movable with the armature 40 to open and close the outlet path 34 .
  • the stator 38 has, in its center, a vertically extending spring housing hole 44 in which a spring 46 is housed.
  • the spring 46 presses the armature 40 so that the ball valve 42 is pressed toward the outlet path 34 .
  • the lower portion of the stator 38 functions as a valve chest in which the ball valve 42 is housed and which is filled with low-pressure fuel flowing from the outlet path 34 .
  • An annular groove 48 is formed in the upper surface of the orifice plate 6 .
  • a straight groove 50 extends outward from the annular groove 48 , and the low-pressure fuel in the valve chest flows out into
  • the armature 40 has a disc member 54 , which is disposed to face the stator 38 and form a magnetic circuit with the stator 38 .
  • a pedestal 56 is formed in the center of the disc member 54 , and an abutting portion 58 extends from the pedestal 56 toward the ball valve 42 .
  • the ball valve 42 sits in the abutting portion 58 .
  • a plurality of through-holes 60 are concentrically formed in the disc member 54 .
  • Guide pins 62 are inserted into some of the through-holes 60 .
  • the guide pins 62 are secured to the orifice plate 6 .
  • the through-holes 60 are formed at such locations as to interrupt the magnetic circuit formed by the disc member 54 and the stator 38 .
  • the ball valve 42 closes the outlet path 34 , and, therefore, the hydraulic pressure in the back-pressure chamber 30 plus the force given by the spring 28 to urge the needle 3 in the direction to close the valve is larger than the hydraulic pressure in the fuel reservoir 18 which acts to urge the needle 3 in the direction to open the valve. Accordingly, the needle 3 closes the injection port 14 so that the fuel is not injected.
  • the armature 40 moves toward the stator 38 against the force of the spring 46 , being guided by the guide pins 62 .
  • This causes the ball valve 42 , receiving the hydraulic pressure in the back-pressure chamber 30 , to open the outlet path 34 whereby the high-pressure fuel in the back-pressure chamber 30 is released into the valve chest of the ball valve 42 .
  • the hydraulic pressure in the back-pressure chamber 30 decreases so that the force to move the needle 3 in the direction to open the valve becomes greater. This makes the needle 3 move upward so that the fuel is injected through the injection port 14 .
  • Patent Literature 1 Japan Patent Publication 2010-174820A
  • the through-holes 60 of the solenoid valve of Patent Literature 1, into which the guide pins 62 are inserted, are formed in those portions of the disc member 54 at which the magnetic force generated by the electromagnetic coil 36 is concentrated. This disadvantageously results in smaller electromagnetic attractive force for attracting the armature 40 , so that the armature 40 cannot move toward the stator 38 at a high speed. Solenoid valves used in common rail systems are required to move at a high speed, and the technology disclosed in Patent Literature 1 cannot meet such requirement.
  • An object of the present invention is to provide an electromagnetic valve or solenoid valve which can move at a high speed.
  • the solenoid valve includes a main body in which a coil is housed.
  • An armature is adapted to be attracted by the coil.
  • a valve part is formed integral with the armature.
  • the valve part is adapted to rest on and move away from a valve seat.
  • the valve seat is disposed between a high-pressure path and a low-pressure path.
  • a guide secured to the main body is disposed to engage with the guided portion.
  • the armature is held by the guide in such a manner that it can move between the on-position where the valve part is rest on the valve seat and the off-position where the valve part is off the valve seat.
  • the guided portion is formed in the portion of the armature where there is little magnetic flux, and, therefore a major part of the magnetic flux generated by the coil passes through the armature. Therefore the armature can move toward a stator by an attracting force, which is not reduced as in solenoid valves such as one described in Patent Literature 1. Further, since the valve part is formed integral with the armature and no abutting portion as required in the valve described in Patent Literature 1 is formed, the armature can be light-weighted and can be moved at a high speed.
  • the armature may include a magnetic portion and a high-strength portion.
  • the magnetic portion is in a location where the magnetic flux density is high and formed of a magnetic material.
  • the high-strength portion is in a location where the magnetic flux density is low and is formed of a high-strength material exhibiting relatively high strength.
  • the magnetic portion and the high-strength portion are secured to each other.
  • the guided portion is formed in the form of a hole extending through the high-strength portion, which can prevent the armature from cracking.
  • a plurality of such guided portions may be formed to extend through the armature.
  • one or more, less than the total number of the plural guided portions, engage with the guide(s), and the remaining guided portion(s) can be used as an oil releaser(s).
  • the guided portions are used as part of a guiding arrangement and also as an oil releaser, and therefore the guiding arrangement and the oil releaser can be formed simultaneously in a single processing, which can simplify the working for producing the solenoid valve as a whole.
  • the present invention provides an armature movable at a high speed, whereby solenoid valves suitable for use in a common rail system, for example, can be provided.
  • FIG. 1 is an enlarged cross-sectional view of part of a solenoid valve according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of part of the solenoid valve of FIG. 1 .
  • FIG. 3 is a transverse cross-sectional view of an armature used in the solenoid valve of FIG. 1 .
  • FIG. 4 is a side view of a fuel injection valve in which a solenoid valve according to a prior art is used.
  • FIG. 5 is an enlarged cross-sectional view of part of the fuel injection valve of FIG. 4 .
  • a solenoid valve is used in a fuel injection valve for use in a common rail system.
  • the solenoid valve is arranged such that, when electric power is supplied to a coil thereof, an armature is moved to make a high-pressure fluid flow into a low-pressure path.
  • the flow of the high-pressure fluid into the low-pressure path causes a nozzle, which is in a position to close an injection port, to move, which, in turn, causes the high-pressure fuel to be supplied to a cylinder of a diesel engine through the injection port.
  • the solenoid valve has a main body part 70 , which is composed of a base part 70 a , a trunk part 70 b , a connecting part 70 c , a head part 70 d , etc.
  • a valve seat providing member 72 are disposed in the upper end surface of the base part 70 a .
  • a valve seat 74 is formed at the center of one end, the upper end in FIG. 1 , of the valve seat providing member 72 .
  • An orifice 76 and an outlet path 78 are arranged to extend through the valve seat providing member 72 in the named order from the valve seat side.
  • the orifice 76 and the outlet path 78 form together the high-pressure path.
  • a high-pressure fluid is supplied to the valve seat 74 through the high-pressure path.
  • a valve part 82 formed in the armature 80 is adapted to rest on the valve seat 74 to thereby close the valve seat 74 .
  • the armature 80 is movable in the upward and downward directions in FIG. 1 , and, when the armature 80 is in the raised position, the valve part 82 is off the valve seat 74 .
  • the high-pressure fluid flowing out through the valve seat 74 flows out into the low-pressure path 83 .
  • the low-pressure path 83 is provided around the valve seat providing member 72 by part of the trunk part 70 b extending into the above-described depression.
  • the low-pressure oil in the low-pressure path 83 is let out through a path (not shown).
  • the ball valve is used to open and close the valve seat, but, according to the embodiment being described, the valve part 82 integral with the armature 80 operates to open and close the valve seat 74 .
  • the armature 80 is lighter in weight than the one of the described background art.
  • the armature 80 has a high-strength portion 84 at its center, as shown in FIG. 3 .
  • the high-strength portion 84 is made of a high-strength material having relatively high strength, e.g. steel or titanium, and is disc-shaped.
  • a plurality of guided portions, e.g. through-holes 86 are formed in the high-strength portion 84 by removing portions of the high-strength portion 84 , e.g. by boring.
  • the through-holes 86 extend through the high-strength portion 84 in the vertical direction in FIG. 1 .
  • four through-holes 86 are formed, being spaced from each other in the circumferential direction and concentrically arranged.
  • a magnetic portion 88 is formed around and in contact with the peripheral surface of the high-strength portion 84 .
  • the magnetic portion 88 is made of a magnetic material.
  • the magnetic portion 88 is a ring-shaped member made of compacted magnetic powder, and is fitted over the high-strength portion 84 to be integral therewith.
  • a coil 96 is disposed in a portion within the main body part 70 above the armature 80 .
  • the coil 96 is wound around a core 98 , which functions as a stator.
  • the core 98 has a central inner cylindrical portion 98 a .
  • One end, e.g. a lower end, of the inner cylindrical portion 98 a is located above the magnetic portion 88 with a small gap disposed between them.
  • the core 98 has an outer cylindrical portion 98 b disposed, being spaced from the inner cylindrical portion 98 b , or, more specifically, outward of the outer periphery of the armature 80 .
  • a lower end, of the outer cylindrical portion 98 b is located at a level above the upper surface of the magnetic portion 88 .
  • the other ends, e.g. the upper ends, of the inner and outer cylindrical portions 98 a and 98 b are at the same level and are coupled to each other by a connecting portion 98 c .
  • the coil 96 is wound within the space formed between these cylindrical portions 98 a and 98 b .
  • a disc-shaped magnetic flux concentrating member 100 is disposed to extend from the lower end of the outer cylindrical portion 98 b to the magnetic portion 88 of the armature 80 .
  • the magnetic flux concentrating member 100 and the outer cylindrical portion 98 b may be formed integral with each other, while the inner cylindrical portion 98 a and the outer cylindrical portion 98 b are formed to be separate from each other.
  • Guides e.g. guide pins 102 are inserted into predetermined ones of the above-described four through-holes 86 in the high-strength portion 84 .
  • the guide pins 102 are inserted into two of the through-holes 86 which face each other across the center of the high-strength portion 84 .
  • the proximal ends of these guide pins 102 are placed in and secured to holes formed in the valve seat providing member 72 around the valve seat 74 .
  • the guide pins 102 guide the armature 80 as the armature 80 moves upward or downward when the coil 96 is energized or de-energized, as described above.
  • the through-holes 86 guided by the guide pins 102 are formed in the high-strength portion 84 where no cracks should be formed by forming the through-holes 86 .
  • the through-holes 86 are located in the high-strength portion 84 away from the portion of the armature 80 where the magnetic flux is concentrated when the coil 96 is energized.
  • the through-holes 86 do not interrupt the concentration of the magnetic flux, and the armature 80 can move at a high speed.
  • a coil spring 104 Inward of the inner cylindrical portion 98 a of the core 98 , disposed is elastic means, e.g. a coil spring 104 , of which one end is in contact with the high-strength portion 84 of the armature 80 , and the other end of which is in contact with the head part 70 d of the main body part 70 with a spring rest 106 disposed therebetween, as shown in FIG. 1 .
  • the coil spring 104 is compressed against its spring force when the armature 80 is raised in response to energization of the coil 96 , and quickly lowers the armature 80 onto the valve seat 74 through its spring force in response to de-energization of the coil 96 .
  • the through-holes 86 guided along the guide pins 102 of the solenoid valve of the present invention are formed in the high-strength portion 84 of the armature 80 , as described above, and the high-strength portion 84 is formed in an area where the density of magnetic flux from the coil 96 is low. Therefore, the magnetic force acting to attract the armature 80 is not weakened by the presence of the through-holes 86 , so that the armature 80 can be attracted at a high speed. Further, since the valve part 82 is formed integral with the armature 80 , there is no need for forming an abutting portion on the armature 80 as in the prior art valve.
  • the armature 80 can be light in weight and, therefore, can move more quickly.
  • the magnetic portion 88 of the armature 80 is made of compacted magnetic powder, which results in reduced eddy current. With eddy current reduced, the magnetic attractive force can be larger, which results in further quick movement of the armature 80 .
  • the solenoid valve of this invention employs an arrangement in which a plurality of through-holes 86 are formed and the guide pins 102 are provided in some of them, one or more of through-holes well guided by the guide pins 102 can be selectively used. This results in improved guiding performance, and, can reduce the number of adjustments to be done to the through-holes 86 which otherwise would be required for improving the guiding performance.
  • the through-holes 86 through which no guide pins 102 are inserted can function as oil releasers.
  • oil releasers When the armature 80 moves, oil is released out from or supplied to the space between the armature 80 and the coil 96 through the through-holes 86 with no guide pins inserted.
  • holes 90 are formed above the coil 96 , which operate to release oil like the through-holes 86 free of the guide pins 102 .
  • the present invention has been described as being embodied in a fuel injection valve for a common rail system, but it is not limited to such use.
  • the invention can be embodied in any other valves which are arranged to operate to flow a high-pressure fluid into a lower-pressure side when they are opened.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fuel-Injection Apparatus (AREA)
US14/347,325 2011-09-28 2012-09-24 Solenoid valve with armature guide Active 2033-01-28 US9297473B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011212351A JP5689395B2 (ja) 2011-09-28 2011-09-28 電磁弁
JP2011-212351 2011-09-28
PCT/JP2012/074357 WO2013047417A1 (ja) 2011-09-28 2012-09-24 電磁弁

Publications (2)

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US20140225018A1 US20140225018A1 (en) 2014-08-14
US9297473B2 true US9297473B2 (en) 2016-03-29

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US (1) US9297473B2 (zh)
EP (1) EP2749800B1 (zh)
JP (1) JP5689395B2 (zh)
KR (1) KR101536881B1 (zh)
CN (1) CN103857950B (zh)
WO (1) WO2013047417A1 (zh)

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Publication number Priority date Publication date Assignee Title
JP5932572B2 (ja) * 2012-08-29 2016-06-08 株式会社日本自動車部品総合研究所 電磁アクチュエータ
JP6262482B2 (ja) * 2013-10-01 2018-01-17 ナブテスコ株式会社 電磁アクチュエータ
JP6314847B2 (ja) * 2015-01-09 2018-04-25 株式会社デンソー 電磁アクチュエータ
DE102015206739B4 (de) * 2015-04-15 2024-02-08 Vitesco Technologies GmbH Bestimmung eines Hubes eines Magnetventils
JP6711569B2 (ja) * 2015-07-31 2020-06-17 ナブテスコ株式会社 気体用電磁弁
DE102015224177A1 (de) * 2015-12-03 2017-06-08 Robert Bosch Gmbh Kraftstoffinjektor mit Steuerventil
CN105888904B (zh) * 2016-05-19 2018-05-18 哈尔滨工程大学 非晶合金复合铁芯电磁控制喷油器
JP6775142B2 (ja) * 2016-09-09 2020-10-28 パナソニックＩｐマネジメント株式会社 飲料製造装置
BR102017008306A2 (pt) 2017-04-20 2018-11-06 Whirlpool S.A. conjunto de válvula solenoide para controle de vazão e sistema de refrigeração compreendendo conjunto de válvula solenoide para controle de vazão

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CN103857950B (zh) 2015-12-23
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EP2749800B1 (en) 2017-06-28
CN103857950A (zh) 2014-06-11

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